(1) If a party files evidence in response to a notice sent under section 36 , the Registrar of Trade Marks must send the other party (if any) a written notice that:
(a) invites the other party to file evidence in answer; and
(b) states the period from the date of the notice in which evidence in answer m ay be filed.
(2) The period stated for the purposes of paragraph ( 1)(b) must be at least 2 months.
(3) The Registrar of Trade Marks must also notify both parties, in writing, of the date by which a request for a hearing under section 39 must be made.
Note: There may only b e one party in some proceedings .